Timothy c



(No Model.)

T. G. CHALK,

OIL CAN.

No. 286,588. Patented 001;. 16, 1883.

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U ITED STATES PATENT Fries.

TIMOTHY C(CHAIIK, OF PAVTUOKET, RHODE ISLAND.

OIL-CAN.

SPECIFICATION formingpart of Letters Patent No. 286,588, dated October16, 1883. Application filed July 3,1882. (No modeL) I To all whom it mayconcern Be it known that I, TIMOTHY C. CHALK, of

- Pawtucket, in the county of Providence and State of Rhode Island, haveinvented a new the can, by which an air-inlet is provided, as

will be more fully set'forth hereinafter.

The drawing represents my improved oilcan in section, showing itsconstruction and the arrangement of the tubes.

In the drawing, 'A is the body or oil-chamber of the oil-can. B is thedischargetube. G is the air-tube, extending from the top of 1 the canthrough the body and through the false bottomD into the space betweenthe false bottom D and the spring-bottom d. E is a larger tube, extending from the false bottom D to the upper part of the body of-the can. Thistube E is open at both ends, the upper end terminating below and to oneside of the discharge-tube B.

The operation of the oil-can is as follows: When it is to be used, theair will flow down the small tube 0 into the chamber between the twobottoms, and up the larger tube E into i the can-body or oil-chamber,thus allowing the oil to flow from the can as fast as the air enters thesmall tube 0; and if this flow of oil is to be momentarily increased, orthe oil squirted from the discharge, a sudden pressure exerted on thebottomd will force a quantity of air suddenly into the oil-vessel andexpel an equal quantity of oil forcibly.

By the use of the double bottom, the can is materially strengthened, andthe airspace between the two bottoms acts, when suddenly compressed, asa bulb in a syringe, and forces the air intothe oil-vessel suddenly.When properly used, no oil will enter the space between the two bottoms,and the air-tubes are notas ing-can with an air-chamber fitted with opentubes, one of which communicates with the exterior of the can, while theother communicates with the interior of the discharge or o1ling nozzleat a point above the top of the cana body.

Iam also aware that oiling-cans having at the bottom an air-chamberwhich communicates with the exterior of the can and with the;

oil-chamber by means of two tubes arranged in line with theoiling-nozzle have heretofore been known. These forms are, in myopinion, objectionable, for the reason that when the bottom of the canis pressed upon in the operation of oiling, a jet of air is forceddirectly into the oiling-nozzle or delivery-tube, and tends to ej ecttheoil from said nozzle in a spray. 1

Having thus described my invention, I cl-aim as new and desire to secureby Letters Patent The combination, with the oiling-vessel A, having thedischarge-tube B, the two bottoms D and d, forming an air-chamber, andthe tube 0, extending from the exterior of the can v to the air-chamber,of the tube E, extending upward from the air-chamber and terminating ata point to one side of the inner end of the discharge-tube,substantially as described.

TIMOTHY G. CHALK.

Witnesses JosEPH A. MILLER, HENRY J. MILLER.

